package com.sky.service.impl;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.sky.constant.MessageConstant;
import com.sky.dto.UserLoginDTO;
import com.sky.entity.User;
import com.sky.mapper.UserMapper;
import com.sky.properties.WeChatProperties;
import com.sky.service.UserService;
import com.sky.utils.HttpClientUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.Map;

/**
 * @author ssm
 * @version v1.0
 * @ClassName UserServiceImpl
 * @Date: 2025/8/22 10:49
 * @Description: 描述
 */
@Service
public class UserServiceImpl implements UserService {


    public static final String WX_LOGIN="https://api.weixin.qq.com/sns/jscode2session";
    @Autowired
    private WeChatProperties weChatProperties;

    @Autowired
    private UserMapper userMapper;
    @Override
    public User wxLogin(UserLoginDTO userLoginVO) {

        //获取微信用的openid
        Map<String,String> map=new HashMap<>();
        map.put("appid",weChatProperties.getAppid());
        map.put("secret",weChatProperties.getSecret());
        map.put("js_code",userLoginVO.getCode());
        map.put("grant_type","authorization_code");
        String json = HttpClientUtil.doGet(WX_LOGIN, map);
        //判断openid是否为空，为空表示失败，抛出异常
        JSONObject jsonObject = JSON.parseObject(json);
        String openid = jsonObject.getString("openid");
        if (openid==null){
            throw new RuntimeException(MessageConstant.LOGIN_FAILED);
        }
        //判断是否为新用户
        User user= userMapper.getByOpenId(openid);
        //是新用户完成注册
        if (user==null){
            user = User.builder()
                    .openid(openid)
                    .createTime(LocalDateTime.now())
                    .build();
            userMapper.insert(user);
        }

        //返回对象


        return user;
    }
}
